SIEMENS
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Siemens IK PI · 2015
PROFINET/Industrial Ethernet
Industrial Ethernet Switches
Compact switch modules
CSM 377 unmanaged
2
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Overview
•
Unmanaged switch for the connection of a SIMATIC S7-300
with integral PROFINET interface or with an Industrial Ethernet
CP or ET 200M to an Industrial Ethernet in an electrical linear,
tree or star structure
•
As many as three additional nodes can be connected
•
As an unmanaged switch, the CSM 377 is used for integrating
small machines into existing automation networks or for the
standalone operation of the machines
•
Simple, space-saving attachment to S7-300 mounting rail due
to design as single-width module in S7-300 format
•
Low-cost solution for implementing small, local Ethernet
networks
•
Rugged, industry-standard node connections with PROFINET-
compliant RJ45 connectors that latch onto the enclosure to
offer additional strain and bending relief
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Benefits
•
Quick and easy connection of a SIMATIC S7-300 or ET 200M
to electrical Industrial Ethernets in linear, tree or star structures
by means of three additional RJ45 ports
•
Ideal solution for the implementation of small local Ethernets
with a SIMATIC S7-300 station
•
Secure data communication by means of industry standard
device connection with PROFINET-compliant connector
IE FC RJ45 Plug 180 and latching of the connector to the
enclosure to provide additional strain relief
•
Low-maintenance operation thanks to fanless construction
•
Quick and easy diagnosis by means of LEDs on the device
•
Use of uncrossed connection cables possible by means of
integrated autocrossover function
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Application
•
For the economical construction of small, electrical Industrial
Ethernets with star, tree and linear structures using a SIMATIC
S7-300 or ET 200M
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Design
The compact switch module CSM 377 features all the advan-
tages of the SIMATIC S7-300 design:
•
Compact construction;
the rugged plastic enclosure features the following on the front
panel:
- 4 x RJ45 ports for the connection to Industrial Ethernet
(retaining collar)
- 1 x 2-pin pluggable terminal strip for the connection of the
external 24 VDC power supply
- LEDs for diagnostics and for status display of the Industrial
Ethernet ports
• 10/100BaseTX;
automatic detection of the data rate with autosensing and
autocrossover function for the connection of IE FC cables by
means of IE FC RJ45 Plug 180 up to 100 m
•
Simple mounting;
the CSM 377 switch module is mounted on the mounting rail
of the S7-300. As it has no connection to the backplane bus of
the S7-300 or ET 200M, it must either be inserted at the
beginning (first module to the left of the CPU) or at the end
(last module on far right) of the S7-300 station. The connection
to the CPU of the S7-300 is either by means of an Industrial
Ethernet cable or an Industrial Ethernet twisted pair cord.
•
Three further Industrial Ethernet interfaces (TP ports) are
available for the connection of additional Ethernet nodes such
as HMI panels or ET 200
•
The CSM 377 can be operated without a fan and no backup
battery is necessary
•
The module can be replaced without a programming device
© Siemens AG 2014